Maize Second Season Irrigated by Center Pivot in Sandy Soil

Gava, Ricardo; Snyder, Richard L.; Frizzone, José Antônio; Kühn, Irineu Eduardo; Cotrim, Mayara Fávero; Piati, Gabriel Luiz

doi:10.7127/rbai.v12n200825

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“…It is important to highlight that the highest water productivity was obtained with irrigation deficit strategies, which may be a suitable approach in water resource management to increase the efficiency of water use; applicable in situations with water limitations (Vian et al, 2016;Martin et al, 2012). However, Gava et al (2018) warn that in the case of sandy soils, the best results will always be for the greatest water depths.…”

Section: Rh (%)mentioning

confidence: 99%

Center pivot irrigation management in maize hybrids and the incidence of stalk rot

Kühn

Cotrim

Gava

et al. 2020

Rev. bras. eng. agríc. ambient.

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This study aimed to verify the incidence of Fusarium spp. in commercial maize hybrids and irrigation management strategies utilizing center pivot systems. The experiment was carried out during the second season in a randomized block design with a split-plot arrangement with five maize hybrids (2B810, MG580, AS1633, DKB290, and AG8544). The plots were irrigated with five frequencies (1, 2, 3, 4, and 5 days) in one experiment, and five water depths (at 25, 50, 75, 100, and 125% of crop evapotranspiration) in another experiment. Plant height, ear insertion height, moisture at harvest time, yield, and incidence of stalk rot were evaluated. Neither irrigation frequency nor irrigation depth influenced the incidence of disease. The one-day irrigation frequency provided the highest yield for maize hybrids. Hybrid 2B810 showed the highest yield and the lowest incidence of the disease.

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Section: Rh (%)mentioning

confidence: 99%